8,793 research outputs found
PERBEDAAN PENGGUNAAN PRESSURE AIR SYSTEM SEBAGAI PENGGANTI FUEL PUMP DAN PENGGUNAAN FUEL PUMP STANDART TERHADAP KONSUMSI BAHAN BAKAR DAN EMISI GAS BUANG CO DAN HC PADA ENGINE TIPE DOHC 150 CC INJEKSI
No full textRINGKASAN Setiadi, Rio. 2019. Perbedaan Penggunaan Pressure Air System Sebagai Pengganti Fuel Pump Dan Penggunaan Fuel Pump Standart Terhadap Konsumsi Bahan Bakar Dan Emisi Gas Buang CO Dan HC Pada Engine Tipe DOHC 150 CC Injeksi. Skripsi, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Negeri Malang. Pembimbing; (1) Drs. Paryono , S. T , M. T., (II) Windra Irdianto , S. Pd., M.Pd. Kata Kunci: pressure air system, fuel pump standart, konsumi bahan bakar, emisi gas buang Co dan HC, DOHC 150 CC injeksi. Polusi udara yang ada saat ini 70-80% disumbang oleh kendaraan bermotor dengan tipe penggerak mesin torak pembakaran dalam yang mana polusi udara tersebut merupakan emisi gas buang kendaraan yang keluar karena tidak sempurnanya proses pembakaran yang ada di dalam ruang bakar engine, tidak dapat dihindari pada kenyataannya transportasi yang ada saat ini adalah kendaraan dengan tipe mesin torak pembakaran dalam yang merupakan penyumbang polusi udara terbesar. Selain permasalahan tersebut transportasi yang ada saat ini rata-rata menggunakan bahan bakar fosil yang mana jumlahnya hanya berkisar 3,7 milyar barel pada tahun 2008 dengan produksi 0,36 milyar barel pertahun, untuk menjaga persediaan bahan bakar fosil tersebut harus diciptakannya bahan bakar jenis baru atau harus menciptakan sebuah inovasi/alternatif untuk mengurangi konsumsi bahan bakar dan emisi gas buang yang mana salah satunya adalah dengan merubah sistem pompa bahan bakar dengan pressure air system. Penelitian ini bertujuan untuk mengetahui perbedaan antara penggunaan “fuel pump standart” dan “pressure air system” terhadap emisi gas buang HC dan CO dan juga terhadap konsumsi bahan bakar pada mesin tipe DOHC 150 CC dengan sistem injeksi. Penelitian ini dilakukan dengan menggunakan metode penelitian true-eksperimental dengan desain posttest-only control group design.variabel bebas pada penelitian ini adalah pressure air system dan fuel pump standart dengan variabel terikat emisi gas buang CO dan HC dan konsumsi bahan bakar. Pengambilan data dilakukan sebanyak 5 kali setiap putaran mesin 2000 rpm – 5000 rpm dengan kenaikan 500 rpm. Uji hipotesis alternatif menggunakan metode statistik parametrik paired sample T-test dengan uji prasyarat uji normalitas data menggunakan Kolmogorov Smirnov pada SPSS V20. Berdarkan hasil penelitian, pressure air system mengkonsumsi bahan bakar lebih sedikit pada putaran mesin 2000 rpm – 3500 rpm, mengeluarkan emisi gas buang HC lebih sedikit pada putaran mesin 2000 rpm – 3000 rpm, dan mengeluarkan emisi gas buang CO lebih sedikit pada putaran mesin 2000 rpm – 2500 rpm. Dengan hasil tersebut pada analisis data menyatakan bahwa tidak ada perbedaan yang signifikan antara penggunaan pressure air system dan fuel pump standart sehingga dapat dikatakan bahwa pressure air system dapat digunakan untuk menggantikan fuel pump standart. Untuk peneliti yang ingin mengem-bangkan penelitian ini sangat disarankan untuk meneliti pada kenaikan bahan bakar dan mapping ECU untuk menjawab bentuk grafik yang ada. SUMMARY Setiadi, Rio. 2019. The Difference in Using a Pressure Air System as a Substitute for a Fuel Pump and the use of a Standard Fuel Pump on the Consumption of Fuel and Emissions of CO and HC Exhaust Gases in the DOHC 150 CC Injection Engine Type. Thesis, Mechanical Engineering Department, Faculty of Engineering, Malang State University. Advisor: (1) Drs. Paryono , S. T , M. T., (II) Windra Irdianto , S. Pd., M.Pd. Keywords: pressure air system, fuel pump standart, fuel consumption, exhaust emissions CO and HC, DOHC 150 CC injection. Current air pollution 70-80% is contributed by motorized vehicles with a type of internal combustion engine drive where air pollution is the vehicle exhaust emissions due to incomplete combustion processes inside the engine combustion chamber, unavoidable in in fact the current transportation is a vehicle with a type of internal combustion engine which is the biggest contributor to air pollution. In addition to these problems, the existing transportation uses fossil fuels on average, of which the amount is only around 3.7 billion barrels in 2008 with the production of 0.36 billion barrels per year, to maintain the supply of fossil fuels, new types of fuel must be created or must create an innovation/alternative to reduce fuel consumption and exhaust emissions which one of them is to change the fuel pump system with a pressure air system. This research aims to determine the difference between the use of a “standard fuel pump” and a “pressure air system” on exhaust emissions of HC and CO and also on fuel consumption on a type DOHC 150 CC engine with an injection system. This research was conducted using true-experimental research methods with posttest-only control group design. The independent variables in this research were standard pressure water systems and fuel pump standart with the dependent variable exhaust emissions CO and HC and fuel consumption. Data retrieval is done 5 times each engine speed 2000 rpm-5000 rpm with an increase of 500 rpm. The alternative hypothesis test uses the parametric paired sample T-test statistical method with a prerequisite test for data normality test using Kolmogorov Smirnov on SPSS V20. Based on the results of the research, the water pressure system consumes less fuel at engine speed 2000 rpm - 3500 rpm, emits less HC gas emissions at engine speed 2000 rpm - 3000 rpm, and emits less CO gas emissions at 2000 rpm - 2500 rpm. With these results in the data analysis states that there is no significant difference between the use of pressure air system and standard fuel pump so that it can be said that the pressure air system can be used to replace the standard fuel pump. For researchers who want to develop this study it is strongly recommended to examine the increase in fuel and ECU mapping to answer the existing graphs
A new genus and two new species of sea stars (Family Asterinidae) from Indonesian marine lakes, with notes on habitat and feeding ecology
No full textSetiadi, Anargha (2019): A new genus and two new species of sea stars (Family Asterinidae) from Indonesian marine lakes, with notes on habitat and feeding ecology. Zootaxa 4712 (3): 392-402, DOI: 10.11646/zootaxa.4712.3.
Maribel Del Rio-Roberts, Psy.D.
No full textDr. Del Rio-Roberts is an Assistant Professor within the Department of Justice and Human Services, within the College of Arts, Humanities, and Social Sciences at NSU. She is also the Program Director for the Masters of Science in Developmental Disabilities Dr. Del Rio-Roberts teaches courses in developmental disabilities, child protection, recreational therapy, human services administration, and mental health counseling. Furthermore, she is a Licensed Florida Psychologist who specializes in the areas of developmental disabilities, clinical child psychology, infant mental health, and psychological evaluation. Dr. Del Rio-Roberts has been the principal and co-principal investigator on numerous university-based grants related to developmental disabilities. She is the author of The Playful Minds Coping Skills Program: A Treatment for Pediatric Oncology Patients and several articles related to qualitative research. In the community, Dr. Del Rio-Roberts is a Clinical Director for the Strong Minds, Strong Bodies program for the Special Olympics of Florida and has appeared as a consultant on several television and radio programs
A POÉTICA n’AS CURVAS DO RIO: A IMAGINAÇÃO GEOGRÁFICA NO RIO CACHOEIRA
Full text linkO objetivo deste artigo é interpretar o espaço geográfico do rio Cachoeira no romance As Curvas do Rio, de José Cândido de Carvalho Filho, identificando-o como uma realidade geográfica concreta e também como uma paisagem imaginada e descrita pelo autor. O referido rio permeia como ator principal e também como cenário das paisagens vivenciadas nos diálogos que acontecem entre quatro amigos no alpendre da casa-sede de uma fazenda de cacau, no Sul do estado da Bahia. Através destes quatro personagens, o autor descortina “um mundo do cacau”, vívido, sentido, amado e imaginado, em que o importante rio Cachoeira torna-se povoado de desejo... devaneio... imaginação... e criatividade.... Ter imaginação significa ter liberdade de apreender o espaço, para pensar... para devanear... para escrever uma obra que leva o leitor à história e à memória da Região Cacaueira da Bahia. Os diálogos acontecem para que os personagens exponham seu entendimento pessoal sobre qualquer um dos temas debatidos, inclusive sobre a imaginária semelhança entre os rios e os homens. Não temos a intenção de substituir a análise científica pela criação literária, mas, apenas, retirar da literatura novos sentidos de interpretação, reconhecendo-a como uma via de enriquecimento do conhecimento do espaço geográfico do rio Cachoeira.
Palavras-chave: Geografia. Literatura. Rio Cachoeira. Poética. Imaginação geográfica
The poetry in “As Curvas do Rio”: the geographical
imagination of cachoeira river
The objective of this paper is to interpret the geographical space of Cachoeira River in the novel As Curvas do Rio by José Cândido de Carvalho Filho, identifying it as a concrete geographical reality and also as a landscape that was imagined and described by the author. The named river permeates as the main actor and also as a setting of the landscapes lived in the dialogues that take place among four friends in the porch of the main house of a cocoa farm in the South of Bahia State. Through these four characters the author uncurtains a vivid “cocoa world”, felt, loved and imagined, in which the important Cachoeira River is full of desire... reverie... imagination... and creativity... To have imagination is to have freedom to learn the space, to think... to wonder... to write a piece that takes the reader to the history and the memory of Bahia’s Cocoa Region. The dialogues take place to allow the characters to express their personal understanding about any of the debated topics, including the imaginary similarity between the rivers and the men. We do not have the intention to replace the scientific analysis by the literary creation, but only withdraw from the literature new senses of interpretation, recognizing it as a way to enrich the knowledge about the geographical space of Cachoeira River.
Key words: Geography. Literature. Cachoeira River. Poetry. Geographical imagination
Samba! Società, musica e sentimenti a Rio de Janeiro
No full textL'autrice descrive la vita quotidiana a Rio de Janeiro negli anni Quaranta e Cinquanta attraverso i testi dei primi samba, che riflettevano la sensibilità e le (spesso tormentate) relazioni di genereThe author describes everyday life in Rio de Janeiro in the 1940s and 50s, using the texts of the first sambas which depicted sensitiveness and (often troubled) gender relationship
Os Primeiros Anos da Pedagogia de Rio Claro
No full textThe article points out the appearing and the first years of the Pedagogy Course of the Faculdade de Filosofia, Ciências e Letras de Rio Claro. It shows a general view of field research oriented by sociological studies and this influence in the process of graduation of the author as a educatorO artigo destaca o surgimento e os primeiros anos do Curso de Pedagogia da Faculdade de Filosofia, Ciências e Letras de Rio Claro. Apresenta apanhado de pesquisa de campo orientada por estudos sociológicos e a sua influência no processo de formação da autora como pedagog
Transshipment port in the Rio de la Plata
No full textThe predictions for the future foretell an increase of the amount of exported grain over the Rio Paraná/Rio de la Plata system of 63% in 2030. Besides this, the new Panama locks will be finished in 2015. Seeing as the current shipping standard is largely determined by the Panama locks, the general expectation is that the vessel dimensions will increase to a standard size that complies with the new locks. It is evident that the increase in maximum draft of these vessels makes the depth restrictions in the Rio de la Plata cut into their efficiency even harder. It is a reasonable assumption that something has to be done in order to keep the Rio Paraná system from collapsing. There are numerous types of solutions that could be applied for this problem. The chosen solution in this case is the construction of a new port somewhere in the Rio de la Plata. This port would serve as a transhipment station where inland vessels deliver the cargo from ports along Rio Paraná and where it gets transhipped into ocean going vessels with a New Panamax size, which have a maximum draft of 54 feet, for shipment across the ocean. This solution means that the ocean going vessels can fully utilise their maximum draft for the entire duration of their trip. Furthermore it means that, as far as the grain industry is concerned, the requirement for maintaining an artificial depth of 34 feet in the Rio de la Plata past the port is no longer required. The final design of the previously described port consists of an artificial island on Banco Chico off the coast of Magdalena in the Rio de la Plata. This location has been chosen due to political, environmental and cost related motivations and is located right next to the already existing shipping channel, making the required access channel for the port’s ocean basin shorter. The port is designed to be capable of receiving anything up to fully loaded New Panamax sized vessels and partially loaded Capesize vessels. On the river side of the port the system is designed to make use of tug/barge combinations with a loading capacity of 5600 tons and a draft of 14 feet. This draft means they can freely sail on most of the Rio de la Plata and do not necessarily require the maintained channels. The island itself gives room for (temporary) storage of commodities in between unloading and loading to ensure a constant supply of grain to load the ocean vessels and thus reduces the service time. All in all the construction of a transhipment port on an artificial island in the Rio de la Plata is a preliminarily feasible solution to the described problem. This does, however, mean that all the assumptions that have been made in the design phase will either have to be true, or false in a non-critical fashion. On top of that there are still numerous risks that could harm the operational feasibility of the port and make sure it will never exist. As long as sufficient research is done into the more critical aspects of these risks and assumptions, a lot of economic benefit could be gained from embarking on a new system.Hydraulic EngineeringCivil Engineering and Geoscience
Icacinicaryites sp. Del Rio C. & De Franceschi 2020
No full textIcacinicaryites sp. (Fig. 5) STRATIGRAPHY. — Cuisian. LOCALITY. — Prémontré (France). SPECIMEN. — MNHN.F.44741. DESCRIPTION Fossil bilaterally symmetrical, elliptical; unilocular and singleseeded, length 8.8 mm, width 7.6 mm. Apex slightly asymmetrical, base rounded, symmetrical. Outer part of locule cast with reticulate pattern of rounded ridges; face of locule cast with 3-4 longitudinal ridges enclosing 6-9 polygonal areoles on each lateral face with few or no freely ending ridgelets; a keel surrounds the locule cast in the plane of symmetry (ṙ); cellular details unknown. REMARKS Only one specimen represents the Icacinaceae in this outcrop. We found no thicker part on the keel which suggests that this specimen is a locule cast rather than the complete endocarp. In the absence of apparent anatomical preservation, we choose to include this specimen in the genus Icacinicaryites without species name. This specimen could be close to Iodes multireticulata sensu Reid & Chandler (1933) but with fewer areoles. It may correspond to Iodes rigida from Le Quesnoy site, but the reticulation pattern does not match. This specimen seems to have a unique morphology despite the lack of anatomical characters. OVERVIEW OF ICACINACEAE FROM THE PARIS BASIN Here we review all the accepted occurrences of the Icacinaceae from the Paris Basin (Table 1). In addition to fruits from Passy, Belleu and Prémontré studied here, we include the fruits from Rivecourt (Paleocene; Del Rio et al. 2019a) and Le Quesnoy (early Eocene, Del Rio et al. 2019b) and a flower from Le Quesnoy (Del Rio et al. 2017). Occurrences of triporate and echinate pollen belonging to the Compositoipollenites genus (with Icacinaceous affinity) have been described for the Paris Basin. Compositoipollenites medius Krutzch & Vanhoorne, 1977, Compositoipollenites minimus Krutzch & Vanhoorne, 1977 and Compositoipollenites rhizophorus burghasungensis (Murriger & Pflug, 1952) Thomson & Pflug, 1949 were found in the Le Quesnoy site and the Paleocene of Guitrancourt (Cavagnetto 2000, Kedves 1970). Moreover, Compositoipollenites minimus was also found in Nointel (early Eocene, Oise; see Kedves 1970) and Compositoipollenites rhizophorus (R. Potonié, 1934) R. Potonié, 1960 at Paris Austerlitz (late Eocene, Paris; see Kedves 1970). However, some author consider that we have not enough data from other families that also have echinate pollen to confidentially conclude about these affinities (Manchester et al. 2015). We decided to follow the same caution and we do not include them in our analysis. No leaves or woods remains have been attributed to Icacinaceae in the Paris Basin.Published as part of Rio, Cédric Del & Franceschi, Dario De, 2020, Icacinaceae fossil fruits from three sites of the Paris Basin (early Eocene, France): local diversity and global biogeographic implications, pp. 17-28 in Geodiversitas 42 (2) on page 25, DOI: 10.5252/geodiversitas2020v42a2, http://zenodo.org/record/369691
Lower Rio Grande Valley
Full text linkPresented at River basin management to meet competing needs: proceedings from the USCID conference on shared rivers held on October 21-31, 1998 in Park City, Utah.This plan for the Lower Rio Grande basin management is designed to meet competing needs. The development of this comprehensive plan has considered demand-side and supply-side management options, an open and participatory decision-making process, the impacts of environmental concerns, and the multiple institutions concerned with water policy. Historically, approximately 85% of the 1,300,000 acre-feet of annual consumption has been in the agricultural production through irrigation. Cameron, Hidalgo, and Willacy Counties are currently experiencing high population growth rates with the combined population expected to increase from approximately 900,000 persons in 2000 to approximately 2,100,000 persons in the year 2050. The quantity of developed water readily available in Falcon-Amistad Reservoir System to the Lower Rio Grande Valley is essentially equal to the current usage level. Most of the adjudicated water rights are held by 28 irrigation districts that supply water diverted from the Rio Grande to both irrigators, municipalities, and water supply corporations through open canals and closed conduits with frequently conflicting demand patterns. Numerous meetings with the Lower Rio Grande Valley Development Council Policy Management Committee, local citizens, and stakeholder groups, under the guidance of a professional meeting facilitator, were included in an effort to achieve the maximum benefit from an open and participatory development process. The Lower Rio Grande Valley is a highly sensitive environmental area with major concerns for water quality as well as for endangered and threatened species, plant communities, fish communities, and animal populations. The management of water currently involves the irrigation districts, municipalities, water supply corporations, Texas Natural Resource Conservation Commission Watermaster, and International Boundary and Water Commission
The speech of João do Rio: power in journalism during the modernization
No full textThis essay aims to achieve a reflection about João do Rio productions, “the first great Brazilian reporter of the beginning of XX century” (GOMES, 2005, p. 11), relating them to the ideas of Mayra Rodrigues Gomes exposed in Poder do Jornalismo. Here, the author gives a reading of the ideas of Foucault, Deleuze and Guattari, articulated to the practice of journalism. The text also highlights the press of early twentieth century, a period of proliferation and intersection of literary, journalistic and film narratives.Este ensaio pretende alcançar uma reflexão acerca das produções de João do Rio, “o primeiro grande repórter brasileiro do início do século XX” (GOMES, 2005, p. 11), relacionando-as com as idéias de Mayra Rodrigues Gomes expostas em Poder no Jornalismo. Neste, a autora faz uma leitura das idéias de Foucault, Deleuze e Guattari articulada à prática jornalística. O texto também destaca a imprensa do início do século XX, época da proliferação e interseção de narrativas literárias, jornalísticas e cinematográficas
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